April 30, 2024
Jafar Poursamad Bonab

Jafar Poursamad Bonab

Academic rank: Associate professor
Address: Bonab, University of Bonab
Education: Ph.D in Laser Physics
Phone: 04137745000-1643
Faculty: Faculty of Science
Department: Optics & Laser Engineering

Research

Title
Optical Nonlinearity of Liquid Crystals in the Presence of Chained Ferroelectric Nanoparticles
Type Article
Keywords
Optical properties of nanoparticles, Ferroelectric materials
Researchers Jafar Poursamad Bonab، Mohammad Emdadi

Abstract

A nematic liquid crystal cell doped with spherical ferroelectric nanoparticles is studied in the high frequency regime. Optical permittivity of the host nematic liquid crystal in the presence of chained ferroelectric nanoparticles, birefringence and optical Freedericksz transition threshold of the suspension are discussed theoretically. The director reorientation of doped nematic liquid crystal is due to the simultaneous presence of the oblique incidence of a light beam and external applied magnetic field in the small director reorientation approximation. Also, optical nonlinearity of the medium is analytically calculated here. The obtained optical nonlinearity is in the range of supra-nonlinearity.